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CVE-2022-49710

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: dm mirror log: round up region bitmap size to BITS_PER_LONG The code in dm-log rounds up bitset_size to 32 bits.

Published Feb 26, 2025EPSS 0.28%

Overview

CVE-2022-49710 is a medium-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

dm mirror log: round up region bitmap size to BITS_PER_LONG

The code in dm-log rounds up bitset_size to 32 bits. It then uses

find_next_zero_bit_le on the allocated region. find_next_zero_bit_le

accesses the bitmap using unsigned long pointers. So, on 64-bit

architectures, it may access 4 bytes beyond the allocated size.

Fix this bug by rounding up bitset_size to BITS_PER_LONG.

This bug was found by running the lvm2 testsuite with kasan.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/0d2209b54f1de0c2f99cab246d4cf2cfe24aaaa9Refgit.kernel.org/stable/c/85e123c27d5cbc22cfdc01de1e2ca1d9003a02d0Refgit.kernel.org/stable/c/9a02f3275acc628c0d956be771405ced79ac36dfRefgit.kernel.org/stable/c/ae460312875159285cef5bf3dc654593f404a1efRefgit.kernel.org/stable/c/ba751f0d25f07aa21ce9b85372a3792bf7969d13

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49710?

CVE-2022-49710 is a medium-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-49710?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-49710?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-49710?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49710 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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